case.hpp
前往此文件的文档页面。
1 /*
2  * Copyright (c) 2019-2024, NVIDIA CORPORATION.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * https://apache.ac.cn/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #pragma once
17 
18 #include <cudf/column/column.hpp>
21 
22 namespace CUDF_EXPORT cudf {
23 namespace strings {
44 std::unique_ptr<column> to_lower(
45  strings_column_view const& strings,
48 
63 std::unique_ptr<column> to_upper(
64  strings_column_view const& strings,
67 
83 std::unique_ptr<column> swapcase(
84  strings_column_view const& strings,
87  // end of doxygen group
89 } // namespace strings
90 } // namespace CUDF_EXPORT cudf
对于字符串类型的列视图,此类的实例提供了对此复合列的包装...
cudf::column 的类定义。
rmm::cuda_stream_view const get_default_stream()
获取当前的默认流。
rmm::device_async_resource_ref get_current_device_resource_ref()
获取当前的设备内存资源引用。
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
std::unique_ptr< column > to_upper(strings_column_view const &strings, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
将字符串列转换为大写。
std::unique_ptr< column > to_lower(strings_column_view const &strings, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
将字符串列转换为小写。
std::unique_ptr< column > swapcase(strings_column_view const &strings, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
返回一个将小写字符转换为大写、大写字符转换为小写的字符串列。
cuDF 接口
定义: host_udf.hpp:37
cudf::strings_column_view 的类定义。